High Temperature Thermocouple with Miniature IP67 Die Cast Alloy Head
High Temperature Metal Sheathed Thermocouples (Type 27)
These high temperature thermocouples are used in applications where other thermocouples would fail due to excessive heat or severe environments. Utilising specialist exotic sheath materials such as Platinum 10% Rhodium, Molybdenum
and Tantalum they can be used in service temperatures up to 4170°F. The combination of conductor, insulation material and sheath must be carefully selected to suit your process environment, service temperature and installation
requirements (ie. whether the probe is flexible or not). Our experienced sales team are on hand to assist where required so please contact us if help is required.
- Typically used with high temperature thermocouple types R, S, B, C and D
- Temperatures up to 3990°F (continuous) or 4170°F (short term)
- Semi-Rigid (mineral insulated) and Rigid (tube) styles available
- Terminated in a die cast alloy miniature terminal head
- Calibration service for oxidizing and inert environments up to 3970°F
| Code | Sheath Material | Operational Properties | MI (Semi-Rigid) Tube (Rigid) |
Insulation Material | Thermocouple Types | Available Sheath Diameters (mm) | Max. Continuous Temperature |
| 600 | Inconel 600® |
Suitable for use in inert, vacuum and oxidizing environments.
Minimum bend radius: 5 x sheath diameter. Not recommended for use above 1470°F in oxidising atmospheres. Do not use in sulphur bearing atmospheres above 1020°F. |
Semi-Rigid | MgO | R, S and B | 0.040”, 0.062”, 0.125”, 0.188” and 0.250” | 2140°F |
| 600T | Inconel 600® | As above. Do not bend. | Rigid | Al2O3 | R, S and B | 0.125”, 0.188” and 0.250” | 2140°F |
| P10R | Platinum 10% Rhodium | Suitable for use in inert and oxidizing environments. Minimum bend radius: 10 x sheath diameter. |
Semi-Rigid | MgO | R, S and B | 0.040” and 0.062” | 2820°F |
| TAN | Tantalum | Suitable for use in inert and vacuum environments. Minimum bend radius: 5 x sheath diameter. |
Semi-Rigid | MgO, Al2O3, HfO2 | R, S, B, C and D | 0.040”, 0.062” and 0.125” | 3990°F |
| NIO | Niobium 1% Zirconium | Suitable for use in inert and vacuum environments.
Minimum bend radius: 10 x sheath diameter. |
Semi-Rigid | MgO, Al2O3, HfO2 | R, S, B, C and D | 0.062” and 0.125” | 3990°F |
| MOL | Molybdenum | Suitable for use in inert, vacuum and reducing environments.
Do not bend. |
Rigid | MgO, Al2O3, HfO2 | R, S, B, C and D | 0.062”, 0.125”, 0.188” and 0.250” | 3630°F |
| CMOL | Coated Molybdenum | Suitable for use in inert and oxidizing environments.
Do not bend. |
Rigid | MgO, Al2O3, HfO2 | C and D | 0.062”, 0.125” and 0.250” | 2910°F |
